Deciding what to do on one's last day away is never quite relaxed: this day's timetable has a fixed end point that must not be missed. But while there's time, what better to do than stroll along the Promenade Plantée - a lovely place for a quiet read, joggers permitting - and then the Sunday market on the nearby Boulevard Richard Lenoir, a classic general market.

In among all the usual market noises was a constant background of amplified announcements, the reason for which became clear at place de la Bastille, for once closed to traffic. There was an organised walk setting off around Paris, and maps, snacks and water were being handed out by the sponsors.

Thousands of people were putting their best foot forward for the next 18km or so, cheered on by some very jolly Savoyard cowbell-ringers:





(PS: the bald man in the video didn't have a heart attack, he was just taking a breather)